DE112020005956T5 - Gestreckte poröse polytetrafluorethylen-membran, luftdurchlässiges medium, bei dem diese verwendet wird, und filterelement, bei dem diese verwendet wird - Google Patents
Gestreckte poröse polytetrafluorethylen-membran, luftdurchlässiges medium, bei dem diese verwendet wird, und filterelement, bei dem diese verwendet wird Download PDFInfo
- Publication number
- DE112020005956T5 DE112020005956T5 DE112020005956.1T DE112020005956T DE112020005956T5 DE 112020005956 T5 DE112020005956 T5 DE 112020005956T5 DE 112020005956 T DE112020005956 T DE 112020005956T DE 112020005956 T5 DE112020005956 T5 DE 112020005956T5
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- air
- stretched
- stretched porous
- permeable medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 231
- 239000012528 membrane Substances 0.000 title claims abstract description 221
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Images
Classifications
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- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
- B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
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- B01D71/36—Polytetrafluoroethene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- B01D2239/1258—Permeability
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- B01D2323/081—Heating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019220672 | 2019-12-05 | ||
JP2019-220672 | 2019-12-05 | ||
PCT/JP2020/045119 WO2021112198A1 (ja) | 2019-12-05 | 2020-12-03 | ポリテトラフルオロエチレン延伸多孔質膜とこれを用いた通気濾材及びフィルター部材 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE112020005956T5 true DE112020005956T5 (de) | 2022-09-22 |
Family
ID=76222424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112020005956.1T Pending DE112020005956T5 (de) | 2019-12-05 | 2020-12-03 | Gestreckte poröse polytetrafluorethylen-membran, luftdurchlässiges medium, bei dem diese verwendet wird, und filterelement, bei dem diese verwendet wird |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230019449A1 (zh) |
JP (1) | JPWO2021112198A1 (zh) |
KR (1) | KR20220104724A (zh) |
CN (1) | CN114761101B (zh) |
DE (1) | DE112020005956T5 (zh) |
TW (1) | TW202128272A (zh) |
WO (1) | WO2021112198A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4194507A1 (en) | 2021-10-22 | 2023-06-14 | Lg Chem, Ltd. | Thermoplastic resin composition, method for producing same, and molded article manufactured therefrom |
WO2024042792A1 (ja) * | 2022-08-26 | 2024-02-29 | 住友電気工業株式会社 | 複合多孔質体、および複合多孔質体の製造方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11515036A (ja) | 1995-08-04 | 1999-12-21 | ダブリュ.エル.ゴア アンド アソシエイツ,インコーポレイティド | ポリテトラフルオロエチレンの高強度で空気透過性の膜 |
JP2009297702A (ja) | 2008-05-12 | 2009-12-24 | Nitto Denko Corp | ポリテトラフルオロエチレン多孔質膜およびその製造方法ならびに濾材 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1216716A (en) * | 1982-09-10 | 1987-01-20 | Jeffery B. Bowman | High strength porous polytetrafluoroethylene product having a coarse microstructure |
US4482516A (en) * | 1982-09-10 | 1984-11-13 | W. L. Gore & Associates, Inc. | Process for producing a high strength porous polytetrafluoroethylene product having a coarse microstructure |
JPH07196831A (ja) * | 1993-12-28 | 1995-08-01 | Japan Gore Tex Inc | ポリテトラフルオロエチレン多孔膜とその製造方法 |
CA2183350C (en) * | 1994-09-02 | 1999-04-27 | Phillip A. Branca | Porous polytetrafluoroethylene compositions |
JP4659241B2 (ja) * | 2001-03-19 | 2011-03-30 | ジャパンゴアテックス株式会社 | ポリテトラフルオロエチレン膜及びその製造方法 |
US20050186367A1 (en) * | 2004-02-19 | 2005-08-25 | Hanrahan James R. | Low friction, abrasion-resistant materials and articles made therefrom |
JP4963185B2 (ja) * | 2006-03-28 | 2012-06-27 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜の製造方法とフィルター濾材ならびにフィルターユニット |
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2020
- 2020-12-03 WO PCT/JP2020/045119 patent/WO2021112198A1/ja active Application Filing
- 2020-12-03 DE DE112020005956.1T patent/DE112020005956T5/de active Pending
- 2020-12-03 JP JP2021562732A patent/JPWO2021112198A1/ja active Pending
- 2020-12-03 KR KR1020227018245A patent/KR20220104724A/ko unknown
- 2020-12-03 CN CN202080084023.9A patent/CN114761101B/zh active Active
- 2020-12-03 US US17/781,913 patent/US20230019449A1/en active Pending
- 2020-12-04 TW TW109142858A patent/TW202128272A/zh unknown
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JPH11515036A (ja) | 1995-08-04 | 1999-12-21 | ダブリュ.エル.ゴア アンド アソシエイツ,インコーポレイティド | ポリテトラフルオロエチレンの高強度で空気透過性の膜 |
JP2009297702A (ja) | 2008-05-12 | 2009-12-24 | Nitto Denko Corp | ポリテトラフルオロエチレン多孔質膜およびその製造方法ならびに濾材 |
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WO2021112198A1 (ja) | 2021-06-10 |
KR20220104724A (ko) | 2022-07-26 |
US20230019449A1 (en) | 2023-01-19 |
TW202128272A (zh) | 2021-08-01 |
CN114761101A (zh) | 2022-07-15 |
CN114761101B (zh) | 2024-03-26 |
JPWO2021112198A1 (zh) | 2021-06-10 |
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